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The Sinclair ZX Spectrum was a considerably popular personal computer during the 1980s. Developed in Britain, it is often credited for popularizing use of the personal computer in Europe. It featured a screen resolution of 256 by 192 colored pixels (unprecedented at the time for a household computer). It was also known for its multifunction rubber...
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Techopedia explains Web Component

A Web browser interacts with a J2EE application via the Java Servlet and JavaServer Pages Web components. However, Web component development and execution processes differ from typical stand-alone Java classes.

The Web container - the environment where Web components are executed - also provides services required for execution. If a Web component is executed by a Web container, the component must first be deployed in a Web container.

There are four basic steps involved in Web component development and execution:

Writing Web component code. A deployment descriptor also may be included in the code.

Packaging the Web component, along with the resources referenced in the code such as images and videos.